Bump junit-jupiter-api from 5.4.1 to 5.4.2 in /modules/junit-jupiter

Bumps [junit-jupiter-api](https://github.com/junit-team/junit5) from 5.4.1 to 5.4.2.
- [Release notes](https://github.com/junit-team/junit5/releases)
- [Commits](junit-team/junit5@r5.4.1...r5.4.2)

Signed-off-by: dependabot[bot] <support@dependabot.com>

modules/junit-jupiter/build.gradle

@@ -2,7 +2,7 @@ description = "Testcontainers :: JUnit Jupiter Extension"
 
 dependencies {
     compile project(':testcontainers')
-    compile 'org.junit.jupiter:junit-jupiter-api:5.4.1'
+    compile 'org.junit.jupiter:junit-jupiter-api:5.4.2'
 
     testCompile project(':mysql')
     testCompile project(':postgresql')